Refrigerator.



F. V. DBTWILER.

REFRIGERATOR. APPLICATION FILED MAY 28, 1909.

Patented Nov. 3, 1914.

' 4 SHEETS-SHEET 1.

YHE NO RRIS PETERS 60.. PHOTO-LITHCL. WASHINGTON D. C.

F. V. DBTWILBR.

REFRIGERATOR.

APPLICATION rum) MAY 28, 1909.

1, 1 1 6 ,033. Patented Nov. 3, 3614.

4 SHEETS-$111131 Z.

TH" NORRIS PETERS 60.. PHOTO-LITh WASHINGTON, n, 0.

F. V. DETWILER.

REFRIGERATOR.

APPLIOATIONPILED MAY 28, 1909.

m B an .8 wk m an 68 m4 m P 3 3 0 6 1 1 1 IIIII THE NORRIS FEYERS 50., PHJTO-LITHO. WASHINGTON I). I

F. V. DETWILER.

REFRIGERATOR.

APPLICATION FILED MAY 28,

Patented Nov. 3, 1914.

4 SEEETS-SHEET 4.

THE NORRIS PETERS CO). PHO7U-LIH| 1. WASHINGTON. D. C.

] NITE STATES} PATENT orr on FOREST V. DET WILER, OF CHICAGO, ILLINOIS.

REFRIGERATOR.

Application filed. May28, 1909. Serial No. 498,980.

Specification of Letters Patent.

Patented Nov. 3, 1914..

1 0 all whom it may concern:

Be it known that I, Fonnsr V. DETWILER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Refrigerators, of which the following is a specification.

This invention relates to improvements in refrigerators, and has for one of its objects to provide an improved water casing and air cooler.

A further object is to provide an improved water casing or cooler within which is arranged the provision chamber and which cooler may be readily and bodily removed from the outer casing.

A further object is to provide improved air circulation tubes or fines and improved means for supporting and removably securing the tubes or lines in position.

A further object is to provide improved means for protecting the inlet ends of the down-going air circulation pipes.

A further object is to provide improved means whereby the space within the ice chamber directly above the walls of the water casing and air cooler maybe utilized for storing articles within the chamber and around the walls thereof and out of contact with the ice or cooling medium.

A further object is to provide an improved device of this character which will be simple, durable, cheap and compact in construction, and effective and eihcient in operation.

To the attainment of these ends and the accomplishment of other new and useful objects, as will appear, the invention consists in the features of novelty in the construe-M tion, combination and arrangement of the several parts hereinafter more fully described and claimed and shown in theaccompanying drawings illustrating an embodiment of the invention, and in which Figure 1 is a perspective View of the outer casing of an improved device of this character constructed in accordance with the principles of this invention. 7 Fig. 2v is a longitudinal sectional view on line 2-2 of Fig. 4. Fig. 8 is a detail sectional view online 3-3 of Fig. 2. Fig. 4 is a transverse sectional view on line 44- of Fig. Fig. 5 is a horizontal sectional view on line 5-5 of Fig. 2. Fig. 6 is a detail perspective view of one of the sections of one ofthe walls of the food compartment or chamber. Fig. 7 isa horizontal sectional view on line 7-7 of Fig. 2. Fig. 8 is a de tail sectional view 011 line 88 of Fig. 4.

Fig. 9 is a horizontal sectional View on line 99 of Fig. 4. Fig. 10 is an enlarged sectional view of a portion ofthe cooler showing the manner of rotecting the inlet ends of the down-going air circulation tubes. Fig. 11 is a detail perspective view of the rear wall of the food compartment or chamber showing a portion of the top and bottom of the chamber, with two of the up-going air circulation tubes or lines secured in position and two of these tubes or fiues removed. Fig. 12 isa detail perspective view of one of the up-goingair circulation tubes or flues. Fig. 13 is a detail perspective view of the screen or guard for the inlet end of the tubes or fines. Fig. let is a detail perspec tive view showing-the mannerof removably securing the provision rackwithin the ice compartment or'chamber... F ig. 15 is a detail sectional View on line 1515 of Fig.11. Fig. 16 is a longitudinal sectional view showing the alarmfor the drip pan. Fig. 17 is a detail perspective view of a portion of the guard or protector for the inlet ends of the down-going air circulation tubes. 1.

Referring more particularly to the drawings and in the present exemplification of the i.nvention,;the numeral 20 designates the outer casing, which may be of any suitable construction and of any desired size and configuration but in the present exemplification of the invention the casing is shown asbeing rectangular. This casing is provided with an open frontwhich is adapted to be closed by a suitable closure in a man nor to be set forth and through which open front access may be had to the interior of the casing.

Arranged within the casing and resting,

upon the bottom thereof is a drip pan 21, which is provided with a suitable discharge pipe 22. If desired, a discharge pipe 23 may be provided instead of the pipe 22. or in addition thereto, to the discharge end of which pipe 23 is connected a suitable faucet or cook 2-1, which latter is adapted to be folded against the wall of the casing to close the pipe 23 and lowered to open the pipe when it is desired to drain ofl the water in the drip pan. The specific construction, however, of this cook or faucet forms no part of the present invention and is therefore not shown nor described in, de

taill as any form of cook or faucet may be use The drip pan is preferably of a size to fill the bottom of the casing and the front wall 25 thereof (see Fig. 8) is cut away, as at 26, to form a recess opening through the top edge of the wall, remote from the side walls of the pan, for a purpose to be hereinafter set forth. The upper edge of the sides and back wallsof the pan arebent to form inwardly projecting lips or supports 27, as shown more clearly in Figs. 2 and 4:, and cover sections 28 areprovided with downwardly projecting flanges around the edges thereof adapted to engage and rest upon the lips 27 for removably holding the cover in position. The cover section 28 is arranged adjacent the side and end walls only and is provided with an aperture 29 therethrough at any suitable or convenient point and preferably adjacent the rear wall of the casing, and surrounding this aperture 29 and preferably formed integral with the cover is an upwardly projecting tubular portion 30, which is provided with interior screw threads for a purpose to be set forth.

Arranged within the casing 20 is a water casing and air cooler, which preferably comprises a tank or receptacle 31, which may be of any suitable depth and of any desired size and configuration but preferably of a size and configuration to substantially fill the casing 20. Depending from and communicating with the tank or receptacle 31 are a plurality of marginal tubular members 32 which are arranged adjacent the side walls and back of the casing 20, so as to form a water casing and air cooler having an open side, which side is arranged adjacent the front of the outer casing 20. A tubular member or pipe 33 is arranged at the bottom of the tubular members 32 so as to connect and communicate with the members 32 and this tubular member or pipe 33 forms a base which is preferably provided with three sides, as shown more clearly in Fig. 7, and which sides are arranged adjacent the sides and back of the casing 20, sothat the cooler casing thus formed will be entirely open on one side below the tank or receptacle 31. Obviously the tank or receptacle 31, the base 33 and-the tubular members 30 may be formed either integrally or may be formed separately and suitably united so as to form fluid tight joints. The tubular member or base 33 is preferably of a width somewhat greater than the diameter of the adjacent portion of the tubular members 33 so as to form a projecting flange or ledge 34: for a purpose to be set forth. The hollow water casing and air cooler thus formed may be supported within the casing 20 in any desired or suitable manner and for this purpose suitable brackets or supports 35 may be provided, which are secured to the inner wall of the casing preferably adjacent the top of the drip pan 21 so that when the upon the brackets adjacent the drip pan.

Arranged within each of the tubular members 32 are downgoing air circulation pipes 36 which are of a diameter somewhat less than the diameter of the tubular members 32 and these pipes or tubes 36 are secured by one extremity to the bottom of the tubular base or member 33 over suitable apertures therein and 'the upper extremities 3? of these tubes project through the bottom of the tank or receptacle 31 and into the tank and terminate any desireddistance above the bottom thereof and preferably short of the top edges of the walls of the tank.

The tubular extension or projecting portion 30 on the top 28 of the drip pan 21 is arranged under one of thetubular members 32 and the base 33 of the cooler is provided with an aperture or opening registering with the opening surrounded by the projection 30. Arranged within this tubular member 32 is an overflow pipe 38, which is provided with an open lower extremity and a series of apertures or openings 39 adjacent the eX- tremity. The other extremity d0 of the pipe 38 is preferably closed by means of a suitable cap, (see Figs 2 and 3) and the'pipe is also provided with a plurality of apertures or openings &1 adjacent the closed end. The pipe 38 is provided with peripheral threads adjacent the open end which are adapted to engage and cooperate with the threads in the tubular projection 30 on the cover 28, and if desired a nut or collar 42 is provided which is secured within the tubular base 33 of the water casing and cooler and through which the extremity of the pipe 38 passes to form a bearing therefor. This pipe 38 is adapted to control the height of water in the cooler. By adjusting the pipe so that the apertures 39 in the lower end thereof stand below the bottom of the tubular base 33, the water will accumulate in the cooler until it reaches the height of the openings 41 and the water will be maintained at this height until the pipe 38 is adjusted. By lowering the openings n by screwing the pipe 38 farther into the drip pan, the height of the water may be lowered.

When it is desired to drain the cooler, the pipe 38 is adjusted so as to bring the openings 39 above the bottom of the base 33 and when in this position the water in the cooler will flow through the openings 39 into the drip pan.

A separable or knock-clown food compartment or chamber is adapted to be inserted into the water casing and cooler through the open side thereof, and this food compartment or chamber comprises a top 43 which is constructed of any desired or suitable ma- 43. These arms or brackets 46 will support the top 43 preferably at a short distance be low the bottom of the tank orpan 31 and in such a position. that the upwardly deflected edge'45 thereof will stand adjacent the front wall of the tank or pan at the open side of the cooler to close the space between the top' of the food compartment and bottom of the tank 31.

The bottom 48 of the food compartment is provided with sides 49 and back 50 of any desired height and the upper edges thereof are deflected laterally as at 51, shown more clearly in Fig. 11, and these laterally projecting or deflected portions extend beyond the outer face of the walls and are provided with upwardly projecting ribs 52 along their upper faces and remote from their edges, which extend substantially the entire length thereof. The bottom thus formed is placed within the cooler so that the flanges 51 thereof will'rest on the projecting portions 34 of the base 33 of the cooler with the open side of the bottom adjacent the front of the casing.

The sides and back of the food compartment are constructed of a plurality of panels. The side panels are designated generally by the reference numeral 53, shown more clearly in Fig. 6. Each of these panels 53 is provided with a laterally projecting flange 54 along oneedge thereof and an upwardly projecting rib 55 extending beyond the outer face of the flange, intermediate the side edges thereof and the rib and flange extend from one edge of the panel and terminate short'of the other edge to form a portion 56. The opposite edge of the panel is deflected as at 57 to form a downwardly opening lip or flange which extends from one end of the panel and terminates short of the other edge and is parallel with the flange 54. The other end of these panels is deflected laterally as at 58,

was to extend between the flange 54 and the lip 57 for a; purpose to be set forth. Each of these panels is also provided with a plurality of apertures or openings 59, over which is arranged a suitable perforate material 60, such as wire gauze or the like. The back panels, designated generally by the reference numeral 61 (shown more clearly in Figs. 4 and 11) areeach provided with a laterally projecting flange 62 along one edge having an upwardlyprojecting rib 63similar to the rib 55 and the other edge isprovided with a downwardly opening lip 64 similar to the lip 57. The ends of the back panels are bent upon themselves asat 65 to form forwardly opening llPS or clips,

which extend from the base of the panels and terminate short of the top edge thereof, as shown-more clearly in Fig. 11. The upper edge 66 of the uppermost panel 61 extends in the same plane as the body portion of the panel and is adapted to enter a downwardly opening lip or clip 44 on the top 43 of the'food compartment. The remaining panels 61 of the back are superposed so that the projecting rib 63 thereon will enter the downwardly opening lipor clip 64 on the next adjacent panel. After the back of the food compartment has been placed in position, the sides may be then assembled and built up in a similar manner, being inserted so that the end 56 thereof will enter the respective clip or forwardly projecting open flange 65, and when seated or placed in position, the flange 58. on the other end of the panels will extend toward the wall of the water-casing to form a closure at the front of the refrigerator for the space between the wall of the food compartment and the water casing. The back panels are also provided with a plurality of apertures 66 which maybe covered by a suitable perforate material 67, such as wire gauze or the like, and which is located preferably on the outsideof the food compartment.

One of the walls of the food c0mpartment, preferably the rearwall, is provided with a plurality of apertures or openings 68 i. If).

the face of the material. These openings 68 are preferably angular in crosssection, of

any desired size, and may be located at any suitable point but are preferably arranged adjacent the top 43 of the food compartment. The other flange O is deflected laterally and extends outwardly from the face of the material, between the flanges 69 to form a support. Any desired number of these l openings 68 may beprovided and in the present exemplification of the invention four ofsuch openings are shown. Cotiperating with each of these openings 68 is a tubular flue ormember 71, which is preferably ane on the opening.

gular in cross section to conform to the shape of the openings 68 and is of a diameter substantially equal to the diameter of Arranged at one end of the tubular member 70 and along the sides of the opening, are cars or clips 7 2 which are preferably formed by deflecting or bending a portion of the opposite sides of the mate rial of which the flue is constructed, away from each other to extend beyond the sides of the flue and then bending the extremities back upon themselves toward each other. A portion ofthe top of the flue at the other end thereof is cut away as at 73 for a purpose to be set forth.

If desired, a screen or guard 74, which may be constructed of any suitable perforate material, such as wire gauze or the like, may be inserted within the inlet end of the flue to prevent foreign matter from entering the lines to be circulated by the air through the refrigerator. When the guard or shield is placed in position the fine is secured to the back by placing the ears or clips 72 in such a position as to engage and surround the re spective flanges 69 of one of the openings 68 and then lowering the flue until the lower edge thereof engages and rests upon the projecting flange or ledge 70. The flues are secured in position in this manner so that the opening 73 through the top at the other end thereof is uppermost. The water casing and cooler is of a depth to terminate short of the rear wall of the casing 20 and the rear wall of the pan or tank 31 also terminates short of the casing 20 to form a passage for the air from the bottom to the top of the casing, and the tubular members 32 are of such a length that the pan or tank 31 will be located some distance below the top of the casing 20.

Arranged between the rear wall of the pan or tank 31, and above the lines or tubes 71, is a partition 7 at (shown more clearly in Figs. l and This partition is preferably provided with flanged portions 7 5 along opposite edges thereof and these flanges are of such a length that when the partition is placed within the space between the rear wall of the pan or tank 31 and the rear wall of the casing 20, the flanges will engage the rear wall of the casing to hold the par ition spaced therefrom and the partition is of such a length that the flanges 75 will engage the side walls of the refrigerator casing to support the partition in position. If desired, the partition may be provided with a plurality of apertures or openings 76 adjacent the top of the casing 20, as shown more clearly in Figs. 2 and el, over which suitable perforate material 77 may be secured. l Vhile in the present exemplification of the invention this partition is shown as extending entirely to the top of the casing 20, and being provided with openings 76 therein to induce air circulation, it is to be understood that the openings 76 may be dispensed with and the partition terminate short of the top of the casing.

Depending below the bottom of the tank 31 is a shield or apron 78, sh wn more clearly in Fig. i, which terminates in close proximity to the upper edge of the tubes or flues 71 and the tubes or flues are of such a length that the opening 7 3 in the top edge thereof will be located between the shield or apron and the rear wall of the casing 20 so that the rip-going air which passes from the food compartment will be discharged into the space formed by the partition 74 and the rear wall of the casing 20 to be directed upwardly and discharged into the ice chamber designated generally by the refer ence numeral 79 in Fig. a, through the openings 7 6. The object of the flue or apron 78 is to direct the rip-going air through the path just described and to prevent it from coming into contact with and moving along the bottom of the tank 31, as the air which rises is of a higher temperature and would cause condensation if it came into contact with the chilled surface of the pan.

The upper edges of the side and rear walls of the pan or tank 31 are bent or deflected as at 80 to form upwardly opening lips similar to the lips formed on the drip pan 21.

A guard or shield is provided for the inlet ends of the down-going air circulation pipes 37. This shield is constructed of any desired or suitable material, preferably metal and comprises a top 81 and a front wall 82, each of which is provided with a series of apertures or openings 83 covered with suitable perforate material 84:. The base of the front 82 is deflected laterally as at 85 (see Fig. 17) to form a foot or support and the free edge of the top 81 is deflected to form a downwardly depending flange 86. This guard or shield is adapted to be placed in the tank or pan 31 so that the flange 86 thereof will rest on the upwardly deflected lips or supports 80 and the foot 85 will rest upon the bottom of the pan to'cover and protect the inlet ends of the pipes 37. The front 82-of the guard or shield is of such a height that the top 81 thereof is preferably spaced a short distance above the pipes 37 and the top 81 is of such a width that the front 82 will also be spaced some distance away from the inlet of the tubular members 32. This guard or shield may be readily removed when desired for cleaning and, being provided with the openings 83, the water in the tank will freely circulate therethrough and the air circulating through the ice chamber will pass through the openings 83 and into the pipes 37.

Arranged within the tank or pan 31 is a perforated metallic support 87, which is held out of engagement with the bottom of the pan by means of suitable supports 88, and an ice rack 89 rests upon the support 87. The support 87' ispreferably of a length to substantially fill the pan or tank and of a height to support the rack some distance below the upper edges of the walls of the pan or tank.

in order to utilize the city water as a cooling medium, instead of the ice 90, a supply pipe 91 is provided which is provided with a controlling valve 92, which pipe may be connected to the source of supply. The pipe extends into the casing 20 at a point in close proximity to the bottom of the tank or pan 31 and is connected to a pipe 93 arranged around the sides and back wall of the pan, as shown more clearly in Figs. 2, and 10. This pipe 93 is provided with a plurality of nozzles 94:, one for each of the tubular members 32, and when this source of cooling medium is employed, the valve 92 may be adjusted to regulate the supply and when opened the water will flow into the respective tubular members 32 through the nozzles to fill the water casing and cooler to the height regulated by the over flow pipe 38.

In order to utilize the space around the walls of the ice chamber 7% above the walls of the cooler, for storing articles and for holding them out of contact with the ice or cooling medium, there is provided a series of racks which are removably held in position and are supported in any desired or suitable manner. preferably by means of the guard or shield for the inlet end of the down-going air circulation tubes. One of these racks is preferably provided and arranged adjacent the sides and rear wall of the casing 20 and each comprises a plurality of uprights 95 between which are arranged suitable shelves 96 see Figs. 2 and a) and winch shelves are preferably constructed of perforate material, the front edges 97 of which extend upwardly for a short distance to prevent the articles from falling from the shelves. One or more of the uprights 95 of each of the racks is preferably provided with laterally deflected portion 98at the base thereof to form a foot (see Fig. 14:) which is adapted to be inserted under a suitable retaining clip 99 (see Figs. and 17) on the guard or shield, and by means of which the racks may be readily removed and inserted and held in position. Any number of shelves may be provided on these racks and the racks extend preferablyto the top of the casing. Thus it will be seen that articles may be placed upon the shelves before or after the ice is placed within the ice chamber and when in position will be held in proximity to the cooling medium without contacting therewith.

lVith an improved cooler of this construction the air circulation will be as follows: The warm air in the food compartment will rise to the top thereof and will be discharged through the fines or tubes 71 behind the partition 7 1 and will be conveyed to the topyof the ice chamber to be discharged thereinto and intoengagement with the ice or cooling medium. As the temperature of the air lowers, it will pass through the down-going air circulation tubes 37 in the direction as indicated by the arrows in Figs. 2 and 4, and will be con veyed by the tubes 37 to be discharged below the tubular base 38, from whichpoint it will enter or pass through suitable apertures 100 in the bottom of the food "compartment and will rise through the food compartment to be again discharged through the tubesor fines 71.

If desired, a tubular member 101 (see Figs. 4, 11 and 16) is supported by one of the walls of the bottom 48 and is provided with an opening :2 in the front thereof, which is visible through a corresponding opening in the rear wall of the food com-- partment (see Figs. 2 and 16). A float 103 having a stem 104: is arranged to move within this tubular member and the tubular member is adapted to extend into and in close proximity with the bottom of the drip pan 2150 that as the water rises and falls in the drip pan the float and stem will be correspondingly raised and lowered. 'A suitable alarm 105 is provided to designate when the pan is full of water and which alarm nay be supported in any convenient place upon the casing 20. Batteries 106 are also provided and the alarm and batteries are connected to a contact107 which'is secured to and insulated from any portion of the structure, preferably the base 33' and also to thehead 108 of the stem, which head is suitably insulated as at 109 from the stem 104; so that when the float rises a sufficient distance to cause'the head 108 to engage the contact 107 the alarm or signal will be sounded.

All of theparts thus described are removably supported within the casing and may be removed and inserted through the open front of the casing.

.Any suitable number of closures may be provided for closing the front of the easing and in the present exemplification of'the invention, three of such closures 110, 111, 112 are provided. Theseclosures constitute the main closures and are supported for pivotal movement by means'of suitable hinges 113. The closures are preferably arranged so as to open toward oppositesides of the refrigerator, that is, the upper and lowermost closures in the presentexemplification of'the invention are shown as adapted to swing toward the right, while the closure 111 is supported to swing toward the left, this ar-' Cir rangement being adapted as a balance to prevent the weight of the closures from tending to tip the refrigerator when all are open. A single fastening means 114 is provided for securing all of these closures closed and in order to accomplish this result the edges of the closure 111 is adapted. to overlap the adjacent edges of the closures 110, 112, so that when it is desired to open either of the upper or lower closures the middle closure must be first opened. These closures are provided for opening the entire front of the casing 20 when it is desired to remove the water cooler or radiator or the food compartment or both, and also the racks in the ice chamber.

Each of the closures 110, 111, 112 is provided with an opening adapted to be respectively closed by supplemental or additional closures 115, 116 and 117, which are of a size somewhat smaller than the main closures. These supplemental closures are provided in order to gain access to the ice chamber and the food compartment without opening the entire front of the casing and each is provided with suitable hinges 118 and a fastening device 119, as shown more clearly in Fig. 1.

Suitable brackets 120 are provided in the food compartment for removably supporting the shelves 121. If desired, suitable vent openings 122 may also be provided (see Figs. 4. and 9) which extend through one of the walls of the casing, preferably the rear wall thereof, and through which any odors which accumulate in the refrigerator will be forced when anyone of the closures is quickly closed after having been opened.

By providing the cut-away or recessed portion 26 in the front wall 25 of the drip pan 21, it will be apparent that the bottom of the food compartment may be permitted to extend into the drip pan a short distance below the top edges of the walls thereof and at the same time will not interfere with the ready removal of the bottom of the food compartment.

In order to prevent the air which is discharged through the down-going air circulation tubes 37 from passing between the wall of the water casing and cooler and outer casing and to direct the same into the food compartment, a guard or shield 123 is provided (see Fig. 4), which is arranged between the base 38 of the cooler and the wall of the casing 20 and extends entirely across the space to form a closure therefor.

When the food compartment is assembled, the laterally projecting flanges 54 and 62 on the sides and rear walls thereof, will engage the faces of the tubular members 32 to hold the walls of the compartment spaced from the tubular members and also retain the compartment in position.

In order that the invention might be fully understood, the details of the foregoing embodiment thereof have been thus specifically described, but

What is claimed as new is 1. In a refrigerator, an outer casing, an

above the hollow casing with walls surrounding the support to form an ice chamber, and shelves removably supported in contact with the said walls in the ice chamber to support articles in close proximity and out of contact with the ice, to which shelves access may be had from the interior of the ice chamber.

In combination in a refrigerator, an inclosing casing, a hollow water casing therein, a chamber in the inclosing casing above the water casing, means whereby said hollow casing may be supplied with a cooling fluid from the said chamber, and article supporting racks removably secured within the chamber and supported by the said hollow casing.

3. A refrigerator including in combination an inclosing casing, a hollow water casing therein, air circulation tubes within the walls of the casing, means whereby the easing may be supplied with a cooling fluid, a

guard for one end of the air circulation tubes, and article racks removably supported by the guard.

1-. A refrigerator including in combination an inclosing casing, a hollow water casingtherein, an ice chamber in the inclosing casing above the hollow casing for supplying the latter with cooling fluid, and article racks within the ice chamber adjacent the walls thereof and removably supported by the said hollow casing.

5. A refrigerator including in combination an inclosing casing, a hollow water casing therein, an ice chamber above the hollow casing for supplying the latter with cooling fluid, and article racks within the ice chamber above the hollow casing and extending substantially to the top of ice chamber adjacent the walls thereof and removably supported by the said hollow easing.

6. A refrigerator including in combination an inclosing casing, a removable hollow casing therein, an ice chamber above the hollow casing for supplying the latter with cooling fluid, and removable article racks within the ice chamber supported by the hollow casing and removable from the inclosing casing independently of the hollow casmg.

7. In a refrigerator, the combination of a hollow casing, a tank having a source of supply of cooling fluid and having communication with the hollow casing for supplying fluid thereto, air circulation tubes within the walls of the casing, one end of said ing fluid thereto, air circulation tubes with-- in the walls of the casing, one end of said tubes projecting through and above the bottom of the tank, a guard removably supported by the tank and extending over the ends of the tubes, and article racks removably secured to the guards and projecting above the top of the tank.

9. In a refrigerator, the combination of an inclosing casing, a hollow water casing comprising a hollow base and hollow walls communicating with the base, an ice receptacle supported by the walls and having coinm'uiiication therewith for supplying the water casing with a cooling fluid, a food chamber within the hollow casing, air circulation pipes arranged in the walls of the hollow casing, one end of the tubes discharging through the hollow base, the other end being open and projecting above the bottom of the ice receptacle, a removable apertured shield supported by the ice receptacle and extending over the ends of the open tubes, and removable shelves within the ice chamber for supporting articles out of contact with the ice and above the bottom of the ice receptacle.

' 10in combination in a refrigerator, a casing comprising a hollow base, hollow walls supported by and communicating with the base, a receptacle supported by and communicating with the walls, said receptacle having a source of supply of cooling fluid, a lrnoclr-down chamber within the casing, each of the side walls of said chamber comprising a plurality of separate panels and each panel being provided with laterally projecting flanges extending beyond the outer faces thereof and adapted to engage th walls of the hollow casing for spacing the walls of the chamber therefrom.

11. In combination in a refrigerator, a casing comprising a hollow base, hollow walls supported by and communicating with the base, a receptacle supported by and communicating with the walls and having a source of supply of cooling fluid, a knockdown chamber within the casing, the bottom of the chamber being supported by and depending below the base of the hollow casing, means for removably supporting the top of the chamber by the said receptacle, each of the side walls of the chamber comprising a plurality of separate panels, means for removably securing the panels together, and

means disposed between the panels and the walls of the hollow casing for spacing the chamberfrom the casing;

12. In combination in a refrigerator, a casing comprising a hollow base, hollow walls supported by and communicating with the base,a receptacle supported by and communicating with the walls and having a source of supply of cooling fluid, a knockdown chamber within the casing, the bottom of the chamber being supported by and depending below the base of the hollow casing, means for removably supporting the top of the chamber by the said receptacle, each of the side walls of the chamber comprising a plurality of separate panels, means for removably securing the panels together, and interengaging flanges on the panels for removably securing the panels together and for spacing the chamber from the walls of the hollow casing.

13. In arefrigerator, the combination of a casing having hollow walls, a receptacle supported by and communicating with the walls and having a source of supply of coolmg fluid, air ClICUllZLtlOll tubes within the walls of the casing, one end of the tubes prostantially L-shaped, one wall of the guard g being provided with a flange adapted to enthe lip and. the other wall extending into the receptacle, and being supported by the bottom of thereceptacle.

let. in a refrigerator,the-combination of a casing having hollow walls, a receptacle supported by and comunicating with the walls andhaving a source of supply of cooling fluid, air circulation tubes within the walls of the casing, one end of the tubes projecting into the receptacle through and terminating above the bottom thereof, the walls of the receptacle being provided with supporting lips, a guard extending over the ends of the tubes, said guard beingsub stantially L-shaped, one wall of the guard being provided with a flange adapted to enthe lip and the other wall extending into the receptacle and being provided with a flange forming a foot adapted to rest upon the bottom of the receptacle.

15. In combination, in a refrigerator, a casing comprising hollow walls and base, a receptacle supported by and communicating with the walls, and having a source of supply of cooling fluid, adrip pan below said base, said pan being provided with a tubular projection, an overflow and drain pipe ex tending through the bottom of the casing and into the said tubular extension, said pipe being provided with an aperture in the side thereof adjacent one end, and means for adjustably securing the said end of the pipe to the tubular extension whereby the pipe may be longitudinally adjusted to move the said aperture above or below the bottom of the said hollow base, and for maintaining the pipe in any of its adjusted positions.

16. In combination in a refrigerator, a casing comprising hollow walls and base, a receptacle supported by and communicating with the walls, and having a source of supply of cooling fluid, a drip pan below said base, said pan being provided with a tubular projection, an overflow and drain pipe within the wall of the casing, said pipe being provided with an aperture through the side thereof at both ends, one end of the pipe extending through the bottom of the casing and into the said tubular extension, and means for supporting and securing the pipe for longitudinal adjustment to move the aperture in one end above or below the bottom of the casing, the other end of the pipe projecting into the said receptacle with the aperture in said end above the bottom of the receptacle.

1?. In combination in a refrigerator, a casing comprising hollow walls and base, and having a source of supply of cooling fluid, a drip pan below the casing, said casing being provided with an opening in the bottom thereof, an overflow and drain pipe within the wall with one end projecting through the said opening and into the drip pan and filling said opening, said pipe being provided with an aperture in its side adjacent said end, and means for securing the pipe for longitudinal adjustment whereby the said aperture may be moved above or below the bottom of the said hollow base, and the pipe maintained in any of its adjusted positions.

18. In combination in a refrigerator, a casing comprising hollow walls and base, and having a source of supply of cooling fluid, a drip pan below the casing, said casing being provided with an opening in the bottom thereof, an overflow and drain pipe within a wall with one end projecting through the said opening and into the drip pan and filling said opening, said pipe being provided with an aperture in its side adjacent said end, and means for securing the pipe for longitudinal adjustment whereby the said aperture may be moved above or below the bottom of the said hollow base and the pipe maintained in any of its adjusted positions, the other end of the pipe extending above and being accessible from the top of the casing.

19. In combination in a refrigerator, an inclcsing casing, a hollow casing therein having a source of supply of cooling fluid, a food compartment within the hollow casing, a down-going air circulation tube within a wall of the hollow casing and having communication with the food compartment and also with the interior of the outer casing, and an up-going air circulation tube removably supported by the wall of the compartment and having communication therewith and also with the interior of'the outer casing.

20. In combination in a refrigerator, an inclosing casing, a hollow casing therein hav ing a source of supply of cooling fluid, a food compartment within the hollow casing, a down-going air circulation tube within a wall of the hollow casing and having communication with the food compartment and also with the interior of the outer casing,

and an rip-going air circulation tube removably supported by the wall of the compartment and having communication therewith and also with the interior of the outer casing, said up-going air tube extending through and discharging beyond the wall of the hollow casing.

21. In combination in a refrigerator, an inclosing casing, a hollow casing therein having a source of supply of cooling fluid, a

food compartment within the hollow casing,

a down-going air circulation tube within a wall of the hollow casing and having communication with the food compartment and also with the interior of the outer casing, said compartment being provided with an opening in one wall thereof, an air circulation tube, and inter-engaging means at one end of the tube and on the'wall of the compartment for removably supporting and securing the end of the tube to the wall and in communication with the opening.

22. In combination in a refrigerator, an inclosing casing, a hollow casing therein having a source of supply of cooling fluid, a food compartment within the hollow casing, a down-going air circulation tube within a wall of the hollow casing and having communication with the food compartment and also with the interior of the outer casing, a portion of the wall of the compartment being cut out and deflected to form an opening having securing and supporting flanges adjacent thereto, an air circulation tube provided with means adjacent one end adapted to engage the flanges on the wall of the compart nent for removably securing and supporting the tube in communication with the opening therein. r

In combination in a refrigerator, an inclosing casing, a food compartment, a chamber above the compartment and adapted to contain a cooling medium, said compartment being spaced from one wall of the casing, a down-going air circulation tube leading from the chamber, a partition in the chamber above the food compartment to form an air passage having communication with the chamber at the top thereof, and an up-going air circulation tube removably sup ported by the wall of and communicating lit) with the food compartment, and discharging into the said air passage adjacent the bottom thereof.

24. In combination in a refrigerator, an inclosing casing, a food compartment therein, an ice chamber in the casing above the compartment, a clown-going air circulation tube leading from the ice compartment, a partition in the ice chamber on one side of the air tube and spaced from the wall of the chamber to form an air passage extending from below the ice chamber and communicating with the chamber adjacent the top thereof, an Lip-going air circulation tube communicating with the food compartment and removably supported by the wall thereof, the last said tube extending beyond the partition and discharging into the said air passage, and being spaced below the bottom of the ice chamber, and a shield or apron depending below the bottom of the ice chamher and terminating adjacent the last said tube.

25. In combination in a refrigerator, an inclosing casing, a food compartment therein spaced from the wall, an ice chamber in the casing above the food compartment, a

Copies of this patent may be obtained for partition in the ice chamber spaced from the wall to form an air passage having c0mmu-- nication with the ice ,chamberladjacent the top thereof and also with the space between the food compartment and the wall of the chamber, a down-going air tube leading from the ice chamber on one, side of the partition, said tube extendingthrough the said space, a partition extending across the space adjacent and above the inlet of the downgoing air tube, an up-going air circulation tube removably supported by the wall of the food compartment and having communication with the compartment, the last said tube extending beyond the first said partition and discharging into the said air passage and a shield or apron depending below the ice chamber and terminating adjacent said upgolng air circulation tube.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses, on this ltth day of May A. D. 1909.

. FOREST V. DETVVILER.

lVitnesses:

J. H. JooH inJn, C. SEEM.

five cents each, by addressing the Commissioner of Iatents,

Washington, I). C. 

